Exterior spare wheel cover



FIG. 1 is a perspective view of an exterior spare wheel cover, showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a left thereof;

FIG. 4 is a right thereof;

FIG. 5 is a top thereof;

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a back view thereof. 

The ornamental design for an exterior spare wheel cover, as shown and described. 